lobbythis wrote:What is it doing when the computer comes back from sleep?
My $300 Asus just recognizes whatever port is active automatically so I don't even have to touch it unless I have two ports active at once. I would assume that Dell operates in the same way. Not sure why it would have problems unless that adapter is finicky.
My adapter that converts DisplayPort to HDMI has never caused an issue on my Samsung TV, but on my old setup, I had multiple computers connected to a single TV using an HDMI splitter and that thing always failed to switch to the proper active port. But, if it is causing too much headache for you, just return it and find a computer and monitor that both have DisplayPorts or HDMI 2.0 ports so you can get that 4K without any issues.
If I click the mouse or press a button on the keyboard, the tower starts flashing lights and whirring - clear signs of some activity. The monitor is completely unresponsive, though. If I turn the computer on in a "fresh" start from being totally shut down, the monitor doesn't even turn on normally - most of the time.
I'd be less worried if I hadn't gotten it to work at all - but I have. It's worked smoothly (at times), but very inconsistently. It's just worlds away from being a machine worth what I paid.